Merck & Co., Inc. (MRK)
Latest MRK Insider Trades
About Merck & Co., Inc. (MRK)
Merck makes pharmaceutical products to treat several conditions in a number of therapeutic areas, including cardiometabolic disease, cancer, and infections. In cancer, the firm's immuno-oncology platform, led by Keytruda, is a major contributor to overall sales. The company also has a substantial vaccine business aimed at preventing pediatric diseases, as well as Gardasil for human papillomavirus. Additionally, Merck sells animal health-related drugs. From a geographical perspective, 53% of the company's 2025 sales were generated from US human health (pharmaceuticals and vaccines).
- RAHWAY, NJ
- 75,000
- 1949
- XNYS
90-Day SEC Filing Activity
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 17 | 228,238 | $29.98M |
| Grant or award | 15 | 22,660 | |
| Option exercise | 16 | 252,960 |
MRK Insider Transactions (Form 4)
3596 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 3 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Richard R. Deluca - Officer | Open-market sale | Common Stock | 37,685 |
Recent MRK Form 8-K Filings
4Recent MRK Form 144 Notices of Proposed Sale
3A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| CHIRFI GUINDO | Officer | 10,000 | $1.35M | View on EDGAR | |
| JENNIFER L ZACHARY | Officer |
MRK Insider Trading - FAQ
What is the latest insider trade for MRK?
Merck & Co., Inc. (MRK) had 22 insider filings in the last 90 days, with the most recent on 2026-08-13. The full record for MRK runs to 96 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying MRK stock?
No insider purchases of MRK were filed in the last 90 days.
How many insiders are selling MRK stock?
17 insider sales of MRK were filed in the last 90 days, totaling $29.98M.
Where can I see MRK SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page tracks MRK Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow MRK insider buys?
Create a free InsiderAlpha account and press Watch on this page to add MRK to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Health Care Companies with Insider Activity
Recent Insider Filings
10Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
- - Chirfi Guindo view on EDGAR
- - Jennifer Zachary view on EDGAR
- - Richard R. Deluca view on EDGAR
- - Richard R. Deluca view on EDGAR
- - David R. Maraldo view on EDGAR
- - David Michael Williams view on EDGAR
- - Chirfi Guindo view on EDGAR
- - Christine E. Seidman view on EDGAR
- - Surendralal Lanca Karsanbhai view on EDGAR
Related Companies - Recent Insider Activity
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider activity in Health Care
- Where MRK's peers are being bought and sold.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
Track MRK insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
